cros_ec_typec:
* Clean up use of cros_ec_check_features
cros_ec_*:
* Rename and move cros_ec_pd_command to cros_ec_command, and make changes to
cros_ec_typec and cros_ec_proto to use the new common command, reducing
duplication.
sensorhub:
* simplify getting .driver_data in cros_ec_sensors_core and cros_ec_sensorhub
misc:
* Maintainership change. Enric Balletbo i Serra has moved on from Collabora,
so removing him from chrome/platform maintainers. Thanks for all of your
hard work maintaining this, Enric, and best of luck to you in your new role!
* Add Prashant Malani as driver maintainer for cros_ec_typec.c and
cros_usbpd_notify. He was already principal contributor of these drivers.
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Merge tag 'tag-chrome-platform-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux
Pull chrome platform updates from Benson Leung:
"cros_ec_typec:
- Clean up use of cros_ec_check_features
cros_ec_*:
- Rename and move cros_ec_pd_command to cros_ec_command, and make
changes to cros_ec_typec and cros_ec_proto to use the new common
command, reducing duplication.
sensorhub:
- simplify getting .driver_data in cros_ec_sensors_core and
cros_ec_sensorhub
misc:
- Maintainership change. Enric Balletbo i Serra has moved on from
Collabora, so removing him from chrome/platform maintainers. Thanks
for all of your hard work maintaining this, Enric, and best of luck
to you in your new role!
- Add Prashant Malani as driver maintainer for cros_ec_typec.c and
cros_usbpd_notify. He was already principal contributor of these
drivers"
* tag 'tag-chrome-platform-for-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux:
platform/chrome: cros_ec_proto: Use ec_command for check_features
platform/chrome: cros_ec_proto: Use EC struct for features
MAINTAINERS: Chrome: Drop Enric Balletbo i Serra
platform/chrome: cros_ec_typec: Use cros_ec_command()
platform/chrome: cros_ec_proto: Add version for ec_command
platform/chrome: cros_ec_proto: Make data pointers void
platform/chrome: cros_usbpd_notify: Move ec_command()
platform/chrome: cros_usbpd_notify: Rename cros_ec_pd_command()
platform/chrome: cros_ec: Fix spelling mistake "responsed" -> "response"
platform/chrome: cros_ec_sensorhub: simplify getting .driver_data
iio: common: cros_ec_sensors: simplify getting .driver_data
platform/chrome: cros-ec-typec: Cleanup use of check_features
platform/chrome: cros_ec_proto: Fix check_features ret val
MAINTAINERS: Add Prashant's maintainership of cros_ec drivers
- Fix double-evaluation of 'pte' macro argument when using 52-bit PAs
- Fix signedness of some MTE prctl PR_* constants
- Fix kmemleak memory usage by skipping early pgtable allocations
- Fix printing of CPU feature register strings
- Remove redundant -nostdlib linker flag for vDSO binaries
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 fixes from Will Deacon:
- Fix double-evaluation of 'pte' macro argument when using 52-bit PAs
- Fix signedness of some MTE prctl PR_* constants
- Fix kmemleak memory usage by skipping early pgtable allocations
- Fix printing of CPU feature register strings
- Remove redundant -nostdlib linker flag for vDSO binaries
* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
arm64: pgtable: make __pte_to_phys/__phys_to_pte_val inline functions
arm64: Track no early_pgtable_alloc() for kmemleak
arm64: mte: change PR_MTE_TCF_NONE back into an unsigned long
arm64: vdso: remove -nostdlib compiler flag
arm64: arm64_ftr_reg->name may not be a human-readable string
This is one set of fixes for the NXP/FSL DPAA2 drivers, addressing
a few minor issues. I received these just after sending out the
last v5.15 fixes, and nothing in here seemed urgent enough for
a quick follow-up.
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Merge tag 'arm-fixes-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc
Pull ARM SoC fixes from Arnd Bergmann:
"This is one set of fixes for the NXP/FSL DPAA2 drivers, addressing a
few minor issues. I received these just after sending out the last
v5.15 fixes, and nothing in here seemed urgent enough for a quick
follow-up"
* tag 'arm-fixes-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
soc: fsl: dpaa2-console: free buffer before returning from dpaa2_console_read
soc: fsl: dpio: use the combined functions to protect critical zone
soc: fsl: dpio: replace smp_processor_id with raw_smp_processor_id
This is a single cleanup from Peter Collingbourne, removing
some dead code.
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Merge tag 'asm-generic-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic
Pull asm-generic cleanup from Arnd Bergmann:
"This is a single cleanup from Peter Collingbourne, removing some dead
code"
* tag 'asm-generic-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
arch: remove unused function syscall_set_arguments()
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Merge tag 'for-linus-5.16b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip
Pull xen updates from Juergen Gross:
- a series to speed up the boot of Xen PV guests
- some cleanups in Xen related code
- replacement of license texts with the appropriate SPDX headers and
fixing of wrong SPDX headers in Xen header files
- a small series making paravirtualized interrupt masking much simpler
and at the same time removing complaints of objtool
- a fix for Xen ballooning hogging workqueues for too long
- enablement of the Xen pciback driver for Arm
- some further small fixes/enhancements
* tag 'for-linus-5.16b-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: (22 commits)
xen/balloon: fix unused-variable warning
xen/balloon: rename alloc/free_xenballooned_pages
xen/balloon: add late_initcall_sync() for initial ballooning done
x86/xen: remove 32-bit awareness from startup_xen
xen: remove highmem remnants
xen: allow pv-only hypercalls only with CONFIG_XEN_PV
x86/xen: remove 32-bit pv leftovers
xen-pciback: allow compiling on other archs than x86
x86/xen: switch initial pvops IRQ functions to dummy ones
x86/xen: remove xen_have_vcpu_info_placement flag
x86/pvh: add prototype for xen_pvh_init()
xen: Fix implicit type conversion
xen: fix wrong SPDX headers of Xen related headers
xen/pvcalls-back: Remove redundant 'flush_workqueue()' calls
x86/xen: Remove redundant irq_enter/exit() invocations
xen-pciback: Fix return in pm_ctrl_init()
xen/x86: restrict PV Dom0 identity mapping
xen/x86: there's no highmem anymore in PV mode
xen/x86: adjust handling of the L3 user vsyscall special page table
xen/x86: adjust xen_set_fixmap()
...
- Continue the cleanup of the dax api in preparation for a dax-device
block-device divorce.
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Merge tag 'libnvdimm-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm update from Dan Williams:
"A single cleanup that precedes some deeper PMEM/DAX reworks that did
not settle in time for v5.16:
- Continue the cleanup of the dax api in preparation for a dax-device
block-device divorce"
* tag 'libnvdimm-for-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nvdimm/pmem: move dax_attribute_group from dax to pmem
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Merge tag 'linux-watchdog-5.16-rc1' of git://www.linux-watchdog.org/linux-watchdog
Pull watchdog updates from Wim Van Sebroeck:
- f71808e_wdt: convert to watchdog framework
- db8500_wdt: Rename driver (was ux500_wdt.c)
- sunxi: Add compatibles for R329 and D1
- mtk: add disable_wdt_extrst support
- several other small fixes and improvements
* tag 'linux-watchdog-5.16-rc1' of git://www.linux-watchdog.org/linux-watchdog: (30 commits)
watchdog: db8500_wdt: Rename symbols
watchdog: db8500_wdt: Rename driver
watchdog: ux500_wdt: Drop platform data
watchdog: bcm63xx_wdt: fix fallthrough warning
watchdog: iTCO_wdt: No need to stop the timer in probe
watchdog: s3c2410: describe driver in KConfig
watchdog: sp5100_tco: Add support for get_timeleft
watchdog: mtk: add disable_wdt_extrst support
dt-bindings: watchdog: mtk-wdt: add disable_wdt_extrst support
watchdog: rza_wdt: Use semicolons instead of commas
watchdog: mlx-wdt: Use regmap_write_bits()
watchdog: rti-wdt: Make use of the helper function devm_platform_ioremap_resource()
watchdog: iTCO_wdt: Make use of the helper function devm_platform_ioremap_resource()
watchdog: ar7_wdt: Make use of the helper function devm_platform_ioremap_resource_byname()
watchdog: sunxi_wdt: Add support for D1
dt-bindings: watchdog: sunxi: Add compatibles for D1
ar7: fix kernel builds for compiler test
dt-bindings: watchdog: sunxi: Add compatibles for R329
watchdog: meson_gxbb_wdt: add timeout parameter
watchdog: meson_gxbb_wdt: add nowayout parameter
...
The remoteproc repo is moved to a new path on git.kernel.org, to allow
Mathieu push access to the branches.
Support for the Mediatek MT8195 SCP was added, the related DeviceTree
binding was converted to YAML and MT8192 SCP was documented as well.
Amlogic Meson6, Meson8, Meson8b and Meson8m2 has an ARC core to aid in
resuming the system after suspend, a new remoteproc driver for booting
this core is introduced.
A new driver to support the DSP processor found on NXP i.MX8QM,
i.MX8QXP, i.MX8MP and i.MX8ULP is added.
The Qualcomm modem and TrustZone based remoteproc drivers gains support
for the modem in SC7280 and MSM8996 gains support for a missing
power-domain.
Throughout the Qualcomm drivers, the support for informing the always-on
power coprocessor about the state of each remoteproc is reworked to
avoid complications related to our use of genpd and the system suspend
state.
Lastly a number of small fixes are found throughout the drivers and
framework.
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Merge tag 'rproc-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull remoteproc updates from Bjorn Andersson:
"The remoteproc repo is moved to a new path on git.kernel.org, to allow
Mathieu push access to the branches.
Support for the Mediatek MT8195 SCP was added, the related DeviceTree
binding was converted to YAML and MT8192 SCP was documented as well.
Amlogic Meson6, Meson8, Meson8b and Meson8m2 has an ARC core to aid in
resuming the system after suspend, a new remoteproc driver for booting
this core is introduced.
A new driver to support the DSP processor found on NXP i.MX8QM,
i.MX8QXP, i.MX8MP and i.MX8ULP is added.
The Qualcomm modem and TrustZone based remoteproc drivers gains
support for the modem in SC7280 and MSM8996 gains support for a
missing power-domain.
Throughout the Qualcomm drivers, the support for informing the
always-on power coprocessor about the state of each remoteproc is
reworked to avoid complications related to our use of genpd and the
system suspend state.
Lastly a number of small fixes are found throughout the drivers and
framework"
* tag 'rproc-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux: (39 commits)
remoteproc: Remove vdev_to_rvdev and vdev_to_rproc from remoteproc API
remoteproc: omap_remoteproc: simplify getting .driver_data
remoteproc: qcom_q6v5_mss: Use devm_platform_ioremap_resource_byname() to simplify code
remoteproc: Fix a memory leak in an error handling path in 'rproc_handle_vdev()'
remoteproc: Fix spelling mistake "atleast" -> "at least"
remoteproc: imx_dsp_rproc: mark PM functions as __maybe_unused
remoteproc: imx_dsp_rproc: Correct the comment style of copyright
dt-bindings: dsp: fsl: Update binding document for remote proc driver
remoteproc: imx_dsp_rproc: Add remoteproc driver for DSP on i.MX
remoteproc: imx_rproc: Add IMX_RPROC_SCU_API method
remoteproc: imx_rproc: Move common structure to header file
rpmsg: char: Remove useless include
remoteproc: meson-mx-ao-arc: fix a bit test
remoteproc: mss: q6v5-mss: Add modem support on SC7280
dt-bindings: remoteproc: qcom: Update Q6V5 Modem PIL binding
remoteproc: qcom: pas: Add SC7280 Modem support
dt-bindings: remoteproc: qcom: pas: Add SC7280 MPSS support
remoteproc: qcom: pas: Use the same init resources for MSM8996 and MSM8998
MAINTAINERS: Update remoteproc repo url
dt-bindings: remoteproc: k3-dsp: Cleanup SoC compatible from DT example
...
For the GLINK implementation this adds support for splitting outgoing
messages that are too large to fit in the fifo, it introduces the use of
"read notifications", to avoid polling in the case where the outgoing
fifo is full and a few bugs are squashed.
The return value of rpmsg_create_ept() for when RPMSG is disabled is
corrected to return a valid error, the Mediatek rpmsg driver is updated
to match the DT binding and a couple of cleanups are done in the virtio
rpmsg driver.
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Merge tag 'rpmsg-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux
Pull rpmsg updates from Bjorn Andersson:
"For the GLINK implementation this adds support for splitting outgoing
messages that are too large to fit in the fifo, it introduces the use
of "read notifications", to avoid polling in the case where the
outgoing fifo is full and a few bugs are squashed.
The return value of rpmsg_create_ept() for when RPMSG is disabled is
corrected to return a valid error, the Mediatek rpmsg driver is
updated to match the DT binding and a couple of cleanups are done in
the virtio rpmsg driver"
* tag 'rpmsg-v5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/remoteproc/linux:
rpmsg: glink: Send READ_NOTIFY command in FIFO full case
rpmsg: glink: Remove channel decouple from rpdev release
rpmsg: glink: Remove the rpmsg dev in close_ack
rpmsg: glink: Add TX_DATA_CONT command while sending
rpmsg: virtio_rpmsg_bus: use dev_warn_ratelimited for msg with no recipient
rpmsg: virtio: Remove unused including <linux/of_device.h>
rpmsg: Change naming of mediatek rpmsg property
rpmsg: Fix rpmsg_create_ept return when RPMSG config is not defined
rpmsg: glink: Replace strncpy() with strscpy_pad()
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Merge tag 'for-5.16/drivers-2021-11-09' of git://git.kernel.dk/linux-block
Pull more block driver updates from Jens Axboe:
- Last series adding error handling support for add_disk() in drivers.
After this one, and once the SCSI side has been merged, we can
finally annotate add_disk() as must_check. (Luis)
- bcache fixes (Coly)
- zram fixes (Ming)
- ataflop locking fix (Tetsuo)
- nbd fixes (Ye, Yu)
- MD merge via Song
- Cleanup (Yang)
- sysfs fix (Guoqing)
- Misc fixes (Geert, Wu, luo)
* tag 'for-5.16/drivers-2021-11-09' of git://git.kernel.dk/linux-block: (34 commits)
bcache: Revert "bcache: use bvec_virt"
ataflop: Add missing semicolon to return statement
floppy: address add_disk() error handling on probe
ataflop: address add_disk() error handling on probe
block: update __register_blkdev() probe documentation
ataflop: remove ataflop_probe_lock mutex
mtd/ubi/block: add error handling support for add_disk()
block/sunvdc: add error handling support for add_disk()
z2ram: add error handling support for add_disk()
nvdimm/pmem: use add_disk() error handling
nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
nvdimm/blk: add error handling support for add_disk()
nvdimm/blk: avoid calling del_gendisk() on early failures
nvdimm/btt: add error handling support for add_disk()
nvdimm/btt: use goto error labels on btt_blk_init()
loop: Remove duplicate assignments
drbd: Fix double free problem in drbd_create_device
nvdimm/btt: do not call del_gendisk() if not needed
bcache: fix use-after-free problem in bcache_device_free()
zram: replace fsync_bdev with sync_blockdev
...
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Merge tag 'for-5.16/block-2021-11-09' of git://git.kernel.dk/linux-block
Pull block fixes from Jens Axboe:
- Set of fixes for the batched tag allocation (Ming, me)
- add_disk() error handling fix (Luis)
- Nested queue quiesce fixes (Ming)
- Shared tags init error handling fix (Ye)
- Misc cleanups (Jean, Ming, me)
* tag 'for-5.16/block-2021-11-09' of git://git.kernel.dk/linux-block:
nvme: wait until quiesce is done
scsi: make sure that request queue queiesce and unquiesce balanced
scsi: avoid to quiesce sdev->request_queue two times
blk-mq: add one API for waiting until quiesce is done
blk-mq: don't free tags if the tag_set is used by other device in queue initialztion
block: fix device_add_disk() kobject_create_and_add() error handling
block: ensure cached plug request matches the current queue
block: move queue enter logic into blk_mq_submit_bio()
block: make bio_queue_enter() fast-path available inline
block: split request allocation components into helpers
block: have plug stored requests hold references to the queue
blk-mq: update hctx->nr_active in blk_mq_end_request_batch()
blk-mq: add RQF_ELV debug entry
blk-mq: only try to run plug merge if request has same queue with incoming bio
block: move RQF_ELV setting into allocators
dm: don't stop request queue after the dm device is suspended
block: replace always false argument with 'false'
block: assign correct tag before doing prefetch of request
blk-mq: fix redundant check of !e expression
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Merge tag 'for-5.16/bdev-size-2021-11-09' of git://git.kernel.dk/linux-block
Pull more bdev size updates from Jens Axboe:
"Two followup changes for the bdev-size series from this merge window:
- Add loff_t cast to bdev_nr_bytes() (Christoph)
- Use bdev_nr_bytes() consistently for the block parts at least (me)"
* tag 'for-5.16/bdev-size-2021-11-09' of git://git.kernel.dk/linux-block:
block: use new bdev_nr_bytes() helper for blkdev_{read,write}_iter()
block: add a loff_t cast to bdev_nr_bytes
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Merge tag 'io_uring-5.16-2021-11-09' of git://git.kernel.dk/linux-block
Pull io_uring fixes from Jens Axboe:
"Minor fixes that should go into the 5.16 release:
- Fix max worker setting not working correctly on NUMA (Beld)
- Correctly return current setting for max workers if zeroes are
passed in (Pavel)
- io_queue_sqe_arm_apoll() cleanup, as identified during the initial
merge (Pavel)
- Misc fixes (Nghia, me)"
* tag 'io_uring-5.16-2021-11-09' of git://git.kernel.dk/linux-block:
io_uring: honour zeroes as io-wq worker limits
io_uring: remove dead 'sqe' store
io_uring: remove redundant assignment to ret in io_register_iowq_max_workers()
io-wq: fix max-workers not correctly set on multi-node system
io_uring: clean up io_queue_sqe_arm_apoll
subsystem. Also enhance both the integrity and crypt targets to emit
events to via dm-audit.
- Various other simple code improvements and cleanups.
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Merge tag 'for-5.16/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm
Pull device mapper updates from Mike Snitzer:
- Add DM core support for emitting audit events through the audit
subsystem. Also enhance both the integrity and crypt targets to emit
events to via dm-audit.
- Various other simple code improvements and cleanups.
* tag 'for-5.16/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
dm table: log table creation error code
dm: make workqueue names device-specific
dm writecache: Make use of the helper macro kthread_run()
dm crypt: Make use of the helper macro kthread_run()
dm verity: use bvec_kmap_local in verity_for_bv_block
dm log writes: use memcpy_from_bvec in log_writes_map
dm integrity: use bvec_kmap_local in __journal_read_write
dm integrity: use bvec_kmap_local in integrity_metadata
dm: add add_disk() error handling
dm: Remove redundant flush_workqueue() calls
dm crypt: log aead integrity violations to audit subsystem
dm integrity: log audit events for dm-integrity target
dm: introduce audit event module for device mapper
- convert sparc32 to the generic dma-direct code
- use bitmap_zalloc (Christophe JAILLET)
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Merge tag 'dma-mapping-5.16' of git://git.infradead.org/users/hch/dma-mapping
Pull dma-mapping updates from Christoph Hellwig:
"Just a small set of changes this time. The request dma_direct_alloc
cleanups are still under review and haven't made the cut.
Summary:
- convert sparc32 to the generic dma-direct code
- use bitmap_zalloc (Christophe JAILLET)"
* tag 'dma-mapping-5.16' of git://git.infradead.org/users/hch/dma-mapping:
dma-mapping: use 'bitmap_zalloc()' when applicable
sparc32: use DMA_DIRECT_REMAP
sparc32: remove dma_make_coherent
sparc32: remove the call to dma_make_coherent in arch_dma_free
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Merge tag 'ovl-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs
Pull overlayfs updates from Miklos Szeredi:
- Fix a regression introduced in the last cycle
- Fix a use-after-free in the AIO path
- Fix a bogus warning reported by syzbot
* tag 'ovl-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/vfs:
ovl: fix filattr copy-up failure
ovl: fix warning in ovl_create_real()
ovl: fix use after free in struct ovl_aio_req
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Merge tag 'fuse-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:
- Fix a possible of deadlock in case inode writeback is in progress
during dentry reclaim
- Fix a crash in case of page stealing
- Selectively invalidate cached attributes, possibly improving
performance
- Allow filesystems to disable data flushing from ->flush()
- Misc fixes and cleanups
* tag 'fuse-update-5.16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (23 commits)
fuse: fix page stealing
virtiofs: use strscpy for copying the queue name
fuse: add FOPEN_NOFLUSH
fuse: only update necessary attributes
fuse: take cache_mask into account in getattr
fuse: add cache_mask
fuse: move reverting attributes to fuse_change_attributes()
fuse: simplify local variables holding writeback cache state
fuse: cleanup code conditional on fc->writeback_cache
fuse: fix attr version comparison in fuse_read_update_size()
fuse: always invalidate attributes after writes
fuse: rename fuse_write_update_size()
fuse: don't bump attr_version in cached write
fuse: selective attribute invalidation
fuse: don't increment nlink in link()
fuse: decrement nlink on overwriting rename
fuse: simplify __fuse_write_file_get()
fuse: move fuse_invalidate_attr() into fuse_update_ctime()
fuse: delete redundant code
fuse: use kmap_local_page()
...
Fix sb refcount leak when allocate sb info failed: Chenyuan Mi
fix error return code of orangefs_revalidate_lookup(): Jia-Ju Bai
Remove redundant initialization of variable ret: Colin Ian King
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Merge tag 'for-linus-5.16-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux
Pull orangefs fixes from Mike Marshall:
- fix sb refcount leak when allocate sb info failed (Chenyuan Mi)
- fix error return code of orangefs_revalidate_lookup() (Jia-Ju Bai)
- remove redundant initialization of variable ret (Colin Ian King)
* tag 'for-linus-5.16-ofs1' of git://git.kernel.org/pub/scm/linux/kernel/git/hubcap/linux:
orangefs: Fix sb refcount leak when allocate sb info failed.
fs: orangefs: fix error return code of orangefs_revalidate_lookup()
orangefs: Remove redundant initialization of variable ret
- fix syzcaller uninitialized value usage after missing error check
- add module autoloading based on transport name
- convert cached reads to use netfs helpers
- adjust readahead based on transport msize
- and many, many checkpatch.pl warning fixes...
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Merge tag '9p-for-5.16-rc1' of git://github.com/martinetd/linux
Pull 9p updates from Dominique Martinet:
"Fixes, netfs read support and checkpatch rewrite:
- fix syzcaller uninitialized value usage after missing error check
- add module autoloading based on transport name
- convert cached reads to use netfs helpers
- adjust readahead based on transport msize
- and many, many checkpatch.pl warning fixes..."
* tag '9p-for-5.16-rc1' of git://github.com/martinetd/linux:
9p: fix a bunch of checkpatch warnings
9p: set readahead and io size according to maxsize
9p p9mode2perm: remove useless strlcpy and check sscanf return code
9p v9fs_parse_options: replace simple_strtoul with kstrtouint
9p: fix file headers
fs/9p: fix indentation and Add missing a blank line after declaration
fs/9p: fix warnings found by checkpatch.pl
9p: fix minor indentation and codestyle
fs/9p: cleanup: opening brace at the beginning of the next line
9p: Convert to using the netfs helper lib to do reads and caching
fscache_cookie_enabled: check cookie is valid before accessing it
net/9p: autoload transport modules
9p/net: fix missing error check in p9_check_errors
Merge more updates from Andrew Morton:
"87 patches.
Subsystems affected by this patch series: mm (pagecache and hugetlb),
procfs, misc, MAINTAINERS, lib, checkpatch, binfmt, kallsyms, ramfs,
init, codafs, nilfs2, hfs, crash_dump, signals, seq_file, fork,
sysvfs, kcov, gdb, resource, selftests, and ipc"
* emailed patches from Andrew Morton <akpm@linux-foundation.org>: (87 commits)
ipc/ipc_sysctl.c: remove fallback for !CONFIG_PROC_SYSCTL
ipc: check checkpoint_restore_ns_capable() to modify C/R proc files
selftests/kselftest/runner/run_one(): allow running non-executable files
virtio-mem: disallow mapping virtio-mem memory via /dev/mem
kernel/resource: disallow access to exclusive system RAM regions
kernel/resource: clean up and optimize iomem_is_exclusive()
scripts/gdb: handle split debug for vmlinux
kcov: replace local_irq_save() with a local_lock_t
kcov: avoid enable+disable interrupts if !in_task()
kcov: allocate per-CPU memory on the relevant node
Documentation/kcov: define `ip' in the example
Documentation/kcov: include types.h in the example
sysv: use BUILD_BUG_ON instead of runtime check
kernel/fork.c: unshare(): use swap() to make code cleaner
seq_file: fix passing wrong private data
seq_file: move seq_escape() to a header
signal: remove duplicate include in signal.h
crash_dump: remove duplicate include in crash_dump.h
crash_dump: fix boolreturn.cocci warning
hfs/hfsplus: use WARN_ON for sanity check
...
Compilation of ipc/ipc_sysctl.c is controlled by
obj-$(CONFIG_SYSVIPC_SYSCTL)
[see ipc/Makefile]
And CONFIG_SYSVIPC_SYSCTL depends on SYSCTL
[see init/Kconfig]
An SYSCTL is selected by PROC_SYSCTL.
[see fs/proc/Kconfig]
Thus: #ifndef CONFIG_PROC_SYSCTL in ipc/ipc_sysctl.c is impossible, the
fallback can be removed.
Link: https://lkml.kernel.org/r/20210918145337.3369-1-manfred@colorfullife.com
Signed-off-by: Manfred Spraul <manfred@colorfullife.com>
Reviewed-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Davidlohr Bueso <dbueso@suse.de>
Cc: Manfred Spraul <manfred@colorfullife.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit removes the requirement to be root to modify sem_next_id,
msg_next_id and shm_next_id and checks checkpoint_restore_ns_capable
instead.
Since those files are specific to the IPC namespace, there is no reason
they should require root privileges. This is similar to ns_last_pid,
which also only checks checkpoint_restore_ns_capable.
[akpm@linux-foundation.org: ipc/ipc_sysctl.c needs capability.h for checkpoint_restore_ns_capable()]
Link: https://lkml.kernel.org/r/20210916163717.3179496-1-mclapinski@google.com
Signed-off-by: Michal Clapinski <mclapinski@google.com>
Reviewed-by: Davidlohr Bueso <dbueso@suse.de>
Reviewed-by: Manfred Spraul <manfred@colorfullife.com>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When running a test program, 'run_one()' checks if the program has the
execution permission and fails if it doesn't. However, it's easy to
mistakenly lose the permissions, as some common tools like 'diff' don't
support the permission change well[1]. Compared to that, making mistakes
in the test program's path would only rare, as those are explicitly listed
in 'TEST_PROGS'. Therefore, it might make more sense to resolve the
situation on our own and run the program.
For this reason, this commit makes the test program runner function still
print the warning message but to try parsing the interpreter of the
program and to explicitly run it with the interpreter, in this case.
[1] https://lore.kernel.org/mm-commits/YRJisBs9AunccCD4@kroah.com/
Link: https://lkml.kernel.org/r/20210810164534.25902-1-sj38.park@gmail.com
Signed-off-by: SeongJae Park <sjpark@amazon.de>
Suggested-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Shuah Khan <shuah@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We don't want user space to be able to map virtio-mem device memory
directly (e.g., via /dev/mem) in order to have guarantees that in a sane
setup we'll never accidentially access unplugged memory within the
device-managed region of a virtio-mem device, just as required by the
virtio-spec.
As soon as the virtio-mem driver is loaded, the device region is visible
in /proc/iomem via the parent device region. From that point on user
space is aware of the device region and we want to disallow mapping
anything inside that region (where we will dynamically (un)plug memory)
until the driver has been unloaded cleanly and e.g., another driver might
take over.
By creating our parent IORESOURCE_SYSTEM_RAM resource with
IORESOURCE_EXCLUSIVE, we will disallow any /dev/mem access to our device
region until the driver was unloaded cleanly and removed the parent
region. This will work even though only some memory blocks are actually
currently added to Linux and appear as busy in the resource tree.
So access to the region from user space is only possible
a) if we don't load the virtio-mem driver.
b) after unloading the virtio-mem driver cleanly.
Don't build virtio-mem if access to /dev/mem cannot be restricticted -- if
we have CONFIG_DEVMEM=y but CONFIG_STRICT_DEVMEM is not set.
Link: https://lkml.kernel.org/r/20210920142856.17758-4-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
virtio-mem dynamically exposes memory inside a device memory region as
system RAM to Linux, coordinating with the hypervisor which parts are
actually "plugged" and consequently usable/accessible.
On the one hand, the virtio-mem driver adds/removes whole memory blocks,
creating/removing busy IORESOURCE_SYSTEM_RAM resources, on the other
hand, it logically (un)plugs memory inside added memory blocks,
dynamically either exposing them to the buddy or hiding them from the
buddy and marking them PG_offline.
In contrast to physical devices, like a DIMM, the virtio-mem driver is
required to actually make use of any of the device-provided memory,
because it performs the handshake with the hypervisor. virtio-mem
memory cannot simply be access via /dev/mem without a driver.
There is no safe way to:
a) Access plugged memory blocks via /dev/mem, as they might contain
unplugged holes or might get silently unplugged by the virtio-mem
driver and consequently turned inaccessible.
b) Access unplugged memory blocks via /dev/mem because the virtio-mem
driver is required to make them actually accessible first.
The virtio-spec states that unplugged memory blocks MUST NOT be written,
and only selected unplugged memory blocks MAY be read. We want to make
sure, this is the case in sane environments -- where the virtio-mem driver
was loaded.
We want to make sure that in a sane environment, nobody "accidentially"
accesses unplugged memory inside the device managed region. For example,
a user might spot a memory region in /proc/iomem and try accessing it via
/dev/mem via gdb or dumping it via something else. By the time the mmap()
happens, the memory might already have been removed by the virtio-mem
driver silently: the mmap() would succeeed and user space might
accidentially access unplugged memory.
So once the driver was loaded and detected the device along the
device-managed region, we just want to disallow any access via /dev/mem to
it.
In an ideal world, we would mark the whole region as busy ("owned by a
driver") and exclude it; however, that would be wrong, as we don't really
have actual system RAM at these ranges added to Linux ("busy system RAM").
Instead, we want to mark such ranges as "not actual busy system RAM but
still soft-reserved and prepared by a driver for future use."
Let's teach iomem_is_exclusive() to reject access to any range with
"IORESOURCE_SYSTEM_RAM | IORESOURCE_EXCLUSIVE", even if not busy and even
if "iomem=relaxed" is set. Introduce EXCLUSIVE_SYSTEM_RAM to make it
easier for applicable drivers to depend on this setting in their Kconfig.
For now, there are no applicable ranges and we'll modify virtio-mem next
to properly set IORESOURCE_EXCLUSIVE on the parent resource container it
creates to contain all actual busy system RAM added via
add_memory_driver_managed().
Link: https://lkml.kernel.org/r/20210920142856.17758-3-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "virtio-mem: disallow mapping virtio-mem memory via /dev/mem", v5.
Let's add the basic infrastructure to exclude some physical memory regions
marked as "IORESOURCE_SYSTEM_RAM" completely from /dev/mem access, even
though they are not marked IORESOURCE_BUSY and even though "iomem=relaxed"
is set. Resource IORESOURCE_EXCLUSIVE for that purpose instead of adding
new flags to express something similar to "soft-busy" or "not busy yet,
but already prepared by a driver and not to be mapped by user space".
Use it for virtio-mem, to disallow mapping any virtio-mem memory via
/dev/mem to user space after the virtio-mem driver was loaded.
This patch (of 3):
We end up traversing subtrees of ranges we are not interested in; let's
optimize this case, skipping such subtrees, cleaning up the function a
bit.
For example, in the following configuration (/proc/iomem):
00000000-00000fff : Reserved
00001000-00057fff : System RAM
00058000-00058fff : Reserved
00059000-0009cfff : System RAM
0009d000-000fffff : Reserved
000a0000-000bffff : PCI Bus 0000:00
000c0000-000c3fff : PCI Bus 0000:00
000c4000-000c7fff : PCI Bus 0000:00
000c8000-000cbfff : PCI Bus 0000:00
000cc000-000cffff : PCI Bus 0000:00
000d0000-000d3fff : PCI Bus 0000:00
000d4000-000d7fff : PCI Bus 0000:00
000d8000-000dbfff : PCI Bus 0000:00
000dc000-000dffff : PCI Bus 0000:00
000e0000-000e3fff : PCI Bus 0000:00
000e4000-000e7fff : PCI Bus 0000:00
000e8000-000ebfff : PCI Bus 0000:00
000ec000-000effff : PCI Bus 0000:00
000f0000-000fffff : PCI Bus 0000:00
000f0000-000fffff : System ROM
00100000-3fffffff : System RAM
40000000-403fffff : Reserved
40000000-403fffff : pnp 00:00
40400000-80a79fff : System RAM
...
We don't have to look at any children of "0009d000-000fffff : Reserved"
if we can just skip these 15 items directly because the parent range is
not of interest.
Link: https://lkml.kernel.org/r/20210920142856.17758-1-david@redhat.com
Link: https://lkml.kernel.org/r/20210920142856.17758-2-david@redhat.com
Signed-off-by: David Hildenbrand <david@redhat.com>
Reviewed-by: Dan Williams <dan.j.williams@intel.com>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
Cc: Hanjun Guo <guohanjun@huawei.com>
Cc: Andy Shevchenko <andy.shevchenko@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This is related to two previous changes. Commit dfe4529ee4
("scripts/gdb: find vmlinux where it was before") and commit da036ae147
("scripts/gdb: handle split debug").
Although Chrome OS has been using the debug suffix for modules for a
while, it has just recently started using it for vmlinux as well. That
means we've now got to improve the detection of "vmlinux" to also handle
that it might end with ".debug".
Link: https://lkml.kernel.org/r/20211028151120.v2.1.Ie6bd5a232f770acd8c9ffae487a02170bad3e963@changeid
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Cc: Kieran Bingham <kbingham@kernel.org>
Cc: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The kcov code mixes local_irq_save() and spin_lock() in
kcov_remote_{start|end}(). This creates a warning on PREEMPT_RT because
local_irq_save() disables interrupts and spin_lock_t is turned into a
sleeping lock which can not be acquired in a section with disabled
interrupts.
The kcov_remote_lock is used to synchronize the access to the hash-list
kcov_remote_map. The local_irq_save() block protects access to the
per-CPU data kcov_percpu_data.
There is no compelling reason to change the lock type to raw_spin_lock_t
to make it work with local_irq_save(). Changing it would require to
move memory allocation (in kcov_remote_add()) and deallocation outside
of the locked section.
Adding an unlimited amount of entries to the hashlist will increase the
IRQ-off time during lookup. It could be argued that this is debug code
and the latency does not matter. There is however no need to do so and
it would allow to use this facility in an RT enabled build.
Using a local_lock_t instead of local_irq_save() has the befit of adding
a protection scope within the source which makes it obvious what is
protected. On a !PREEMPT_RT && !LOCKDEP build the local_lock_irqsave()
maps directly to local_irq_save() so there is overhead at runtime.
Replace the local_irq_save() section with a local_lock_t.
Link: https://lkml.kernel.org/r/20210923164741.1859522-6-bigeasy@linutronix.de
Link: https://lore.kernel.org/r/20210830172627.267989-6-bigeasy@linutronix.de
Reported-by: Clark Williams <williams@redhat.com>
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
kcov_remote_start() may need to allocate memory in the in_task() case
(otherwise per-CPU memory has been pre-allocated) and therefore requires
enabled interrupts.
The interrupts are enabled before checking if the allocation is required
so if no allocation is required then the interrupts are needlessly enabled
and disabled again.
Enable interrupts only if memory allocation is performed.
Link: https://lkml.kernel.org/r/20210923164741.1859522-5-bigeasy@linutronix.de
Link: https://lore.kernel.org/r/20210830172627.267989-5-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
During boot kcov allocates per-CPU memory which is used later if remote/
softirq processing is enabled.
Allocate the per-CPU memory on the CPU local node to avoid cross node
memory access.
Link: https://lkml.kernel.org/r/20210923164741.1859522-4-bigeasy@linutronix.de
Link: https://lore.kernel.org/r/20210830172627.267989-4-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The example code uses the variable `ip' but never declares it.
Declare `ip' as a 64bit variable which is the same type as the array
from which it loads its value.
Link: https://lkml.kernel.org/r/20210923164741.1859522-3-bigeasy@linutronix.de
Link: https://lore.kernel.org/r/20210830172627.267989-3-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Clark Williams <williams@redhat.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Patch series "kcov: PREEMPT_RT fixup + misc", v2.
The last patch in series is follow-up to address the PREEMPT_RT issue
within in kcov reported by Clark [1]. Patches 1-3 are smaller things that
I noticed while staring at it. Patch 4 is small change which makes
replacement in #5 simpler / more obvious.
[1] https://lkml.kernel.org/r/20210809155909.333073de@theseus.lan
This patch (of 5):
The first example code has includes at the top, the following two
example share that part. The last example (remote coverage collection)
requires the linux/types.h header file due its __aligned_u64 usage.
Add the linux/types.h to the top most example and a comment that the
header files from above are required as it is done in the second
example.
Link: https://lkml.kernel.org/r/20210923164741.1859522-1-bigeasy@linutronix.de
Link: https://lore.kernel.org/r/20210830172627.267989-2-bigeasy@linutronix.de
Link: https://lkml.kernel.org/r/20210923164741.1859522-2-bigeasy@linutronix.de
Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Dmitry Vyukov <dvyukov@google.com>
Acked-by: Marco Elver <elver@google.com>
Tested-by: Marco Elver <elver@google.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Clark Williams <williams@redhat.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
There were runtime checks about sizes of struct v7_super_block and struct
sysv_inode. If one of these checks fail the kernel will panic. Since
these values are known at compile time let's use BUILD_BUG_ON(), because
it's a standard mechanism for validation checking at build time
Link: https://lkml.kernel.org/r/20210813123020.22971-1-paskripkin@gmail.com
Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Signed-off-by: Pavel Skripkin <paskripkin@gmail.com>
Cc: Christoph Hellwig <hch@lst.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Use swap() instead of reimplementing it.
Link: https://lkml.kernel.org/r/20210909022046.8151-1-ran.xiaokai@zte.com.cn
Signed-off-by: Ran Xiaokai <ran.xiaokai@zte.com.cn>
Cc: Gabriel Krisman Bertazi <krisman@collabora.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Eric W. Biederman <ebiederm@xmission.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Alexey Gladkov <legion@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
DEFINE_PROC_SHOW_ATTRIBUTE() is supposed to be used to define a series
of functions and variables to register proc file easily. And the users
can use proc_create_data() to pass their own private data and get it
via seq->private in the callback. Unfortunately, the proc file system
use PDE_DATA() to get private data instead of inode->i_private. So fix
it. Fortunately, there only one user of it which does not pass any
private data, so this bug does not break any in-tree codes.
Link: https://lkml.kernel.org/r/20211029032638.84884-1-songmuchun@bytedance.com
Fixes: 97a32539b9 ("proc: convert everything to "struct proc_ops"")
Signed-off-by: Muchun Song <songmuchun@bytedance.com>
Cc: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Cc: Stephen Rothwell <sfr@canb.auug.org.au>
Cc: Florent Revest <revest@chromium.org>
Cc: Alexey Dobriyan <adobriyan@gmail.com>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Move seq_escape() to the header as inliner, for a small kernel text size
reduction.
Link: https://lkml.kernel.org/r/20211001122917.67228-1-andriy.shevchenko@linux.intel.com
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
'linux/string.h' included in 'signal.h' is duplicated.
it's also included at line 7.
Link: https://lkml.kernel.org/r/20211019024934.973008-1-ye.guojin@zte.com.cn
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
In crash_dump.h, header file <linux/pgtable.h> is included twice. This
duplication was introduced in commit 65fddcfca8ad("mm: reorder includes
after introduction of linux/pgtable.h") where the order of the header
files is adjusted, while the old one was not removed.
Clean it up here.
Link: https://lkml.kernel.org/r/20211020090659.1038877-1-ye.guojin@zte.com.cn
Signed-off-by: Ye Guojin <ye.guojin@zte.com.cn>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Changcheng Deng <deng.changcheng@zte.com.cn>
Cc: Simon Horman <horms@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
./include/linux/crash_dump.h: 119: 50-51: WARNING: return of 0/1 in
function 'is_kdump_kernel' with return type bool
Return statements in functions returning bool should use true/false
instead of 1/0.
Link: https://lkml.kernel.org/r/20211020083905.1037952-1-deng.changcheng@zte.com.cn
Signed-off-by: Changcheng Deng <deng.changcheng@zte.com.cn>
Reported-by: Zeal Robot <zealci@zte.com.cn>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Mike Rapoport <rppt@linux.ibm.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ye Guojin <ye.guojin@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
gcc warns about a couple of instances in which a sanity check exists but
the author wasn't sure how to react to it failing, which makes it look
like a possible bug:
fs/hfsplus/inode.c: In function 'hfsplus_cat_read_inode':
fs/hfsplus/inode.c:503:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
503 | /* panic? */;
| ^
fs/hfsplus/inode.c:524:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
524 | /* panic? */;
| ^
fs/hfsplus/inode.c: In function 'hfsplus_cat_write_inode':
fs/hfsplus/inode.c:582:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
582 | /* panic? */;
| ^
fs/hfsplus/inode.c:608:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
608 | /* panic? */;
| ^
fs/hfs/inode.c: In function 'hfs_write_inode':
fs/hfs/inode.c:464:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
464 | /* panic? */;
| ^
fs/hfs/inode.c:485:37: error: suggest braces around empty body in an 'if' statement [-Werror=empty-body]
485 | /* panic? */;
| ^
panic() is probably not the correct choice here, but a WARN_ON
seems appropriate and avoids the compile-time warning.
Link: https://lkml.kernel.org/r/20210927102149.1809384-1-arnd@kernel.org
Link: https://lore.kernel.org/all/20210322223249.2632268-1-arnd@kernel.org/
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Alexander Viro <viro@zeniv.linux.org.uk>
Cc: Christian Brauner <christian.brauner@ubuntu.com>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Jan Kara <jack@suse.cz>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Remove filenames that are not particularly useful in file comments, and
suppress checkpatch warnings
WARNING: It's generally not useful to have the filename in the file
Link: https://lkml.kernel.org/r/1635151862-11547-3-git-send-email-konishi.ryusuke@gmail.com
Signed-off-by: Ryusuke Konishi <konishi.ryusuke@gmail.com>
Cc: Qing Wang <wangqing@vivo.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Helps with tracking which patches have been propagated upstream and if
users are running the latest known version.
Link: https://lkml.kernel.org/r/20210908140308.18491-10-jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
vmemdup_user is better than duplicating its implementation, So just
replace the open code.
fs/coda/psdev.c:125:10-18:WARNING:opportunity for vmemdup_user
The issue is detected with the help of Coccinelle.
Link: https://lkml.kernel.org/r/20210908140308.18491-9-jaharkes@cs.cmu.edu
Reported-by: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Jing Yangyang <jing.yangyang@zte.com.cn>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
refcount_t type and corresponding API can protect refcounters from
accidental underflow and overflow and further use-after-free situations.
Link: https://lkml.kernel.org/r/20210908140308.18491-8-jaharkes@cs.cmu.edu
Signed-off-by: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Signed-off-by: Xin Tan <tanxin.ctf@gmail.com>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
When Coda discovers an inconsistent object, it turns it into a symlink.
However we can't just follow this change in the kernel on an existing file
or directory inode that may still have references.
This patch removes the inconsistent inode from the inode hash and
allocates a new inode for the symlink object.
Link: https://lkml.kernel.org/r/20210908140308.18491-7-jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
We were actually fixing up the directory mtime in both branches after the
negative dentry test, it was just that one branch was only flagging the
directory inodes to refresh their attributes while the other branch used
the optional optimization to set mtime to the current time and not go back
to the Coda client.
Link: https://lkml.kernel.org/r/20210908140308.18491-6-jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Somehow we hit a negative dentry in coda_rename even after checking with
d_really_is_positive. Maybe something raced and turned the new_dentry
negative while we were fixing up directory link counts.
Link: https://lkml.kernel.org/r/20210908140308.18491-5-jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
No one care 'err' in func coda_release, so better remove it.
Link: https://lkml.kernel.org/r/20210908140308.18491-4-jaharkes@cs.cmu.edu
Signed-off-by: Alex Shi <alex.shi@linux.alibaba.com>
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Originally flagged by Smatch because the code implicitly assumed outSize
is not NULL for non-async upcalls because of a flag that was (not) set in
req->uc_flags.
However req->uc_flags field is in shared state and although the current
code will not allow it to be changed before the async request check the
code is more robust when it tests against the local outSize variable.
Link: https://lkml.kernel.org/r/20210908140308.18491-3-jaharkes@cs.cmu.edu
Signed-off-by: Jan Harkes <jaharkes@cs.cmu.edu>
Cc: Alex Shi <alex.shi@linux.alibaba.com>
Cc: Jing Yangyang <jing.yangyang@zte.com.cn>
Cc: Xin Tan <tanxin.ctf@gmail.com>
Cc: Xiyu Yang <xiyuyang19@fudan.edu.cn>
Cc: Zeal Robot <zealci@zte.com.cn>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
